All Forums  GQ Electronics Forums  2.GQ Geiger Muller Counter  New GMC-200 has low count rate

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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by GBG12[/i] [br]My new GMC-200 has a very low count rate; it's 1 CPM (10 minute average). Another GM tube detector I have reads ~15 CPM, which is what I expect from this GQ detector based on the World map. Is there an adjustment? The audible clicks are reliably counted by the software, so it's not a communication or software issue. I wonder if it may be a tube voltage issue. [/quote]    Insert an Image File Check here to include your profile signature.